The Quran (kUrˈɑːn, ; vocalized Arabic: , Quranic Arabic: ALA-LC alqurˈʔaːn, 'the recitation'), also romanized Qur'an or Koran, is the central religious text of Islam, believed by Muslims to be a revelation from God. It is organized in 114 chapters ( (): سور ALA-LC, (): سورة ALA-LC), which consist of verses ( (): آيات ALA-LC, (): آية ALA-LC, (): ALA-LC). In addition to its religious significance, it is widely regarded as the finest work in Arabic literature, and has significantly influenced the Arabic language.
Muslims believe that the Quran was orally revealed by God to the final prophet, Muhammad, through the archangel Gabriel incrementally over a period of some 23 years, beginning on Laylat Al Qadr, when Muhammad was 40, and concluding in 632, the year of his death at age 61–62. Muslims regard the Quran as Muhammad's most important miracle, a proof of his prophethood; and as the culmination of a series of divine messages starting with those revealed to Adam, including the Tawrat, the Zabur (Psalms) and the Injil (Gospel). The word Quran occurs some 70 times in the text itself, and other names and words are also said to refer to the Quran.
The Quran is believed by Muslims to be not simply divinely inspired, but the literal word of God. Muhammad did not write it as he was illiterate. In Muslim theology, the Quran is considered to be either "created" or "uncreated". According to tradition, several of Muhammad's companions served as scribes, recording the revelations. Shortly after the prophet's death, the Quran was compiled by the companions, who had written down or memorized parts of it. Caliph Uthman established a standard version, now known as the Uthmanic codex, which is generally considered the archetype of the Quran known today. There are, however, variant readings, with mostly minor differences in meaning.
The Quran assumes familiarity with major narratives recounted in the Biblical and apocryphal scriptures. It summarizes some, dwells at length on others and, in some cases, presents alternative accounts and interpretations of events.